58 lines
2.1 KiB
Go
58 lines
2.1 KiB
Go
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package service
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import "strings"
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const (
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VideoBillingResolution480P = "480p"
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VideoBillingResolution720P = "720p"
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VideoBillingResolution1080P = "1080p"
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)
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// xAI 视频生成按秒计费，duration 请求参数允许 1-15 秒；未指定时上游默认生成 8 秒。
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// 计费时长必须与上游实际消耗对齐，否则用户可通过拉长 duration 套利（提交时长由用户控制）。
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const (
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VideoBillingMinDurationSeconds = 1
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VideoBillingMaxDurationSeconds = 15
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VideoBillingDefaultDurationSeconds = 8
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)
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// NormalizeVideoBillingDurationSecondsOrDefault 归一化计费用视频时长：
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// 未指定（<=0）按上游默认 8 秒计，超出上游允许区间按边界收敛。
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func NormalizeVideoBillingDurationSecondsOrDefault(durationSeconds int) int {
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if durationSeconds <= 0 {
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return VideoBillingDefaultDurationSeconds
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}
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if durationSeconds < VideoBillingMinDurationSeconds {
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return VideoBillingMinDurationSeconds
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}
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if durationSeconds > VideoBillingMaxDurationSeconds {
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return VideoBillingMaxDurationSeconds
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}
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return durationSeconds
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}
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// LookupVideoBillingResolution 归一化分辨率并报告是否为已知档位。
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// 配置解析路径必须用它而不是 OrDefault：把无法识别的档位（如 "4k"、拼错的
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// "1080i"）静默折算成 480p，会让管理员配的高分辨率单价被挂到低分辨率档上。
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func LookupVideoBillingResolution(resolution string) (string, bool) {
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switch strings.ToLower(strings.TrimSpace(resolution)) {
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case "480", "480p", "sd":
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return VideoBillingResolution480P, true
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case "720", "720p", "hd":
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return VideoBillingResolution720P, true
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case "1080", "1080p", "full_hd", "full-hd", "fhd":
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return VideoBillingResolution1080P, true
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default:
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return "", false
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}
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}
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// NormalizeVideoBillingResolutionOrDefault 用于运行时计费：上游回传的分辨率
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// 缺失或无法识别时按最低档兜底，保证请求仍可计费。
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func NormalizeVideoBillingResolutionOrDefault(resolution string) string {
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if normalized, ok := LookupVideoBillingResolution(resolution); ok {
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return normalized
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}
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return VideoBillingResolution480P
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}
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